John Paul Stevens, appointed by Ford, is 88 years oldRuth Bader Ginsburg, appointed by Clinton, is 75 years oldAntonin Scalia, appointed by Reagan, is 72 years oldAnthony Kennedy, appointed by Reagan, is 71 years oldDavid Souter, appointed by George HW Bush, is 69 years oldStephen Breyer, appointed by Clinton, is 69 years oldClarence Thomas, appointed by George HW Bush, is 59Sam Alito, appointed by George W Bush, is 55John Roberts, appointed by George W Bush, is 53

John Paul Stevens and Ruth Bader Ginsberg have both expressed a desire to retire so Obama will likely be replacing these two.